12-Letter Words Matching ______S__T__

There are 20 12-letter words that match ______S__T__. 7 are common words, such as BUTTERSCOTCH and MARQUISETTES. A rarer one is THERMOSTATED. In this set, E is the most frequent open letter (16 words). 7 words contain a doubled letter.

Full list 20

butterscotchmarquisettesnarcissisticsilversmithsthermostaticunpleasantlyuntranslatedconversantlycoppersmithspalimpsesticretranslatedretranslatesboddhisattvachemiosmotichyperostoticmarquessatesoverassertedposthospitalsomatostatinthermostated

About this list

Words
20 (7 common words)
Common example
butterscotch
Rare example
thermostated
Doubled letters
7
Ending in S
5
Most frequent letter
E (16)

Questions

How many 12-letter words matching ______s__t__ are there?

20. 7 of them are common words.

What is a common example?

BUTTERSCOTCH is among the common words in this set.